I can't think of any case where a human gets confused by some text because a hyphen character was used instead of an em-dash, and maybe that's what you mean by real value.

But I see you using an em-dash to hyphenate "semantic-stripping" as a joke, which is funny. Is that real value? Is conveying to others that you're educated real value?

Yes, it matters. I found your comment hard to read and had to re-read it a couple of times to parse it. If you want to use the hyphen because it's more easily typed I suggest using the double hyphen "--", which perhaps doesn't have the correct semantics on a per-character basis, but at least looks mostly right and will be clear in meaning to a human reader.

Only when responding to rants, i.e. pedantry for fun. Live a little!